A plugging method for gas leakage of gis equipment with electricity and pressure

A technology for plugging leaks under pressure and gas leakage, which is applied to electrical components, switchgear settings, switchgear and other directions.

Active Publication Date: 2017-10-31
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] "A Diversion Type Pressure Leakage Plugging Technology" (Application No. 201210087602.6) and "Drainage Adhesive Sealing Type Pressure Leakage Plugging Device" (Application No. 201410580187.7) and "A Kind of Charged Gas Leakage of Sulfur Hexafluoride Electrical Equipment" The pressurized leak plugging method introduced in "Application No. 201510586733.2" (application number 201510586733.2) is limited to the treatment of gas leakage at local points (such as trachoma) of sulfur hexafluoride electrical equipment. Cracks, especially gas leakage on the flange surface still cannot be plugged

Method used

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  • A plugging method for gas leakage of gis equipment with electricity and pressure

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Experimental program
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Embodiment 1

[0026] 1. There is sulfur hexafluoride gas leakage at the position of the A-phase flange of a 500kV outdoor GIS I. First, prepare a 2.5m-long Ω-shaped rubber strip 4 according to the diameter of the equipment, that is, an Ω-shaped neoprene strip. A small hole is opened in the middle position, and the shut-off valve 6, namely the ball valve, is fixed above the small hole of the Ω-shaped neoprene strip with acrylic adhesive, and the ball valve is opened.

[0027] 2. Remove dust and oil on both sides of the leakage flange of GIS equipment 1.

[0028] 3. Apply the acrylic adhesive to the straight positions of both ends of the Ω-shaped neoprene strip, and then wrap it circularly on both sides of the leakage flange of the GIS equipment 1.

[0029] 4. Use acrylic adhesive to bond the overlapping part of the Ω-shaped neoprene strip firmly.

[0030] 5. Use stainless steel cable ties to fix the two ends of the Ω-shaped neoprene strip on the GIS device 1 in a straight position.

[0031...

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PUM

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Abstract

The invention discloses a charged plugging method under voltage for gas leakage of GIS equipment. The method comprises an omega-shaped rubber strip (4) that can be annularly coated on both sides of a leakage position of the GIS equipment, a disconnection valve (6) communicating with the omega-shaped rubber strip (4), a plurality of ribbons (5) for binding the omega-shaped rubber strip (4) on the GIS equipment, as well as a plurality of adhesives. By adopting the charged plugging method under voltage for the gas leakage of the GIS equipment disclosed by the invention, large area leakage can be plugged conveniently and quickly without power down.

Description

technical field [0001] The invention relates to a gas leakage plugging method for power system equipment maintenance, in particular to a GIS equipment gas leakage plugging method with electrification and pressure. Background technique [0002] GIS (Gas Insulated Switchgear), that is, sulfur hexafluoride closed combined electrical appliances, is the use of SF 6 The gas has good insulation performance, and the circuit breaker, isolating switch, grounding switch, transformer, lightning arrester, busbar, inlet and outlet bushing, cable terminal, etc. are assembled together in a closed manner. This type of equipment occupies a small area, advanced technology, and easy maintenance. It has been widely used in the electric power industry due to its small capacity and high operational reliability. However, due to the material, manufacturing process and installation of the equipment, the gas leakage problem of GIS equipment is very common in China and even in the world. [0003] At ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B3/00H02B13/045
CPCH02B3/00H02B13/045
Inventor 周舟李臻周年光陈绍艺冯兵钱晖龚尚昆万涛吴俊杰
Owner STATE GRID CORP OF CHINA
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